User profile or type of user changed but now I am not able to use all functionalities

I am OT employee. First time I have installed , I have choosen by mistake as free ( personal email ) not employee (corporate login ). After that, I have removed , reinstalled and informed correect profile. Since I have reinstalled , I am not able to sync files that a coleague shared ( I am listed as manager too for the file ) and also I am not able to use office 360 - the message suggests that I am not an employee. Do you know how to cleanup the installation and perform a brand new one , so I can have these problems fixed?